What am I Doing Wrong :(

Hi guys, my teacher assigned a basic degree planner, I already coded most of it but for some reason I cannot seem to get the Boolean function to work correctly keeps returning true. Maybe a fresh set of eyes can spot what i am doing wrong. Any help is welcomed.

There may be an added feature that you want to put in, but that is easy. Lots of global variables != encapsulation.
You were overwriting the variables before the data needed in them was able to be used in another function. Also, a for loop is really what you need. ;)